13349204663849 has 4 divisors (see below), whose sum is σ = 13532070481236. Its totient is φ = 13166338846464.

The previous prime is 13349204663833. The next prime is 13349204663863. The reversal of 13349204663849 is 94836640294331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2792508366400 + 10556696297449 = 1671080^2 + 3249107^2 .

It is a cyclic number.

It is not a de Polignac number, because 13349204663849 - 2⁴ = 13349204663833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13349204663791 and 13349204663800.

It is not an unprimeable number, because it can be changed into a prime (13349204603849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91432908584 + ... + 91432908729.

It is an arithmetic number, because the mean of its divisors is an integer number (3383017620309).

Almost surely, 2^{13349204663849} is an apocalyptic number.

It is an amenable number.

13349204663849 is a deficient number, since it is larger than the sum of its proper divisors (182865817387).

13349204663849 is an equidigital number, since it uses as much as digits as its factorization.

13349204663849 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182865817386.

The product of its (nonzero) digits is 80621568, while the sum is 62.

The spelling of 13349204663849 in words is "thirteen trillion, three hundred forty-nine billion, two hundred four million, six hundred sixty-three thousand, eight hundred forty-nine".